Methodology for Improving Scanning Performance Loading an Array Element with a 3D All-Metal WAIM - Archive ouverte HAL Access content directly
Journal Articles Electronics Year : 2022

Methodology for Improving Scanning Performance Loading an Array Element with a 3D All-Metal WAIM

Méthodologie pour améliorer les performances de balayage en chargeant un élément de réseau avec un WAIM 3D entièrement métallique

Abstract

All-metal 3D printing technologies are allowing the conception of new structures for different applications. This publication explores the potential of employing for the first time an all-metal 3D unit-cell topology to perform wide-angle impedance matching layers. A new equivalent circuit is derived for the oblique incidence, providing a good estimation of the cell response for the scanning range (θ=[0°,55°]) in the main scanning planes for a linearly polarized radiated field. This analytical model is later used to develop a wide-angle impedance matching design methodology for a generic antenna. This methodology is tested in practice to match a phased array made of metallic horns at 18 GHz. An improvement of 5 dB is obtained in the simulations for angles θ>35° for the H-plane.
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Dates and versions

hal-03974322 , version 1 (05-02-2023)

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Diego Bermúdez-Martín, Raphaël Gillard, Carlos Molero, Hervé Legay, María García-Vigueras. Methodology for Improving Scanning Performance Loading an Array Element with a 3D All-Metal WAIM. Electronics, 2022, 11 (18), pp.2848. ⟨10.3390/electronics11182848⟩. ⟨hal-03974322⟩
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